Just to be a bit of a nitpicker, the 2 connectors for the SE cable should be listed for use with SE cable, and you probably need 2 ground rods. Also it would eliminate a possible weak link in the GEC chain if you just put the water ground ahead of the meter (closer to where it comes in from the slab), then the plumbers in the future will not be as likely to disconnect, and more importantly ASSURE THAT THEY RECONNECT it, if working on it in the future .
